Starting device.



. A. E. NELSON.

STARTING DEVICE. v unicum! FILED SEPT. 2o, 1907.

Patented Nov. 24, 1908,

2 SHEETS-SHEET 1.

A. E. NELSON.

STARTING DEVICE.

APPLICATION FILED sBPT,2o, 1907.

Patented Nov. 24, w08,

2 SHEETS-SHEET L',

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ARTHUR ELAS NELSON, 0l? GOHOS, lifllW YR'.

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Specification of Letters Patent.

Patented Non. 2, 1808.

.application filed September-20, 1907. Serial No. 393,858.

To all whom 'it may concern:

A Ide it known that I, Annina E. NELSON, a cltizen of the United States, residing at Cohoes, in the county of Albany and State of New York, have invented a new and useful Starting Device; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention pertains to a new and useul starting device for gas engines, specially gas engines that are enerally designed for automobiles and the like; andthe invention in its broadest latitude, consists of a simple, eliicient and. compact mechanism, the essential elements of which `consists of a two-part casing, one cic which fitting upon the other and the other being constructed so as to be keyed to a ratchet wheel, which is keyed to the crank -shaft of the engine, said parts being provided"withV a winding spring to c0- operate therebetween. One of said parts is provided with a ratchet and pawl device,

while the other is provided` with worin teeth, j

causing the said part to perform the function ot a worin wheel, which is coperated with by mechanism for transmitting power thereto, from the, crank shaft of the gas engine.

This invention comprises further objects and combinations of elements which will' be hereinafter more fully, described, shown in the accompanying drawings, and thenovel features thereof will be pointed out by the appended claims.

To obtain a full and connect understandg .of the details of construction, combinaof features, elements and advantages, reference is to he had to the hereinafter set forth description, and the accompanying drawings in connection therewith, wherein from the automobile.

. 1 designates Figure 1y is a side elevation of an antonio# `bile,"showi1 1g the application of the vimproved 'starting device. Fig. 2 is an enlar elevation of the starting device ed side etached edge elevation of the starting device. Fig. 4 is a sectional view on theline 4-4 of-Fig. 2. Like numerals of reference indicate like parts throughout the several-views. A I

Referring to the accompanying drawlngs the Icrank shaft of an automobile, upon which shaft is journaled a casing rises two parts '3 and 4, which 2,;whichcoin from having movement .pan

. about the .pulley 7 with the notch Fig. 3 is anenlarged vallel with the shaft 1, by means of an annular shoulder and the ratchet and pulley 6 and 7, which are keyed to the shaft 1, as. shown clearly in the drawings. @ne 'of said parts is provided with an annular iiange 8, upon which is formed a plurality. of teeth 9,

of such characterso as to cause the part 3 to perform the function of a worin wheel with which the worin 1() engages, the purpose of which is hereinafter set forth.. This worm is provided with a shaft 11, upon the end of which is a bevel gear 12, journaled thereon, and with which a beveled pinion 13 meshes, as clearly shown; thispbeveled pinion is 1nov able with the pulley 14, about which ai suitable endless belt or other means 15 travels, as clearly shown. rlhis belt also travels as will be clearly observed in the drawings.

Mounted between the parts 3 and 4 and adapted to` cooperate therewith is a spring 16, the inner end of which istixed to the part 3, as at 17, while the outer end is Xed to the part 4,. as at 18, as clearly shown.

The part 4 is provided with a pivoted weighted pawl 19, which when it reaches a certain location radial with the center of the shaft 1, through the medium of the rotationv of the part 4, it overbalances. which causes its engagement with the ratchet G.

When the part 4 and the ratchet' 6 are rotating together power is transmitted to the pulley and pinion 14 and 13, by the pulley 7 and the belt 15; powerl is then transmitted by the bevel gear 12 to the worm 10, which in turn operatesthe-worm wheel or part 3, which rewinds the spring and when rewound the belt 15 slips, thus preventing eX- erting further winding or rewinding action upon the spring. This transmission of power which is utilized. Jforstarting the gas engine and rewinding the spring is caused by releasing the bent end 20 of the lever 21, which is pivoted as at 22,' from engagement 23, formed in the part 4, which, when released, is free to rotate, as the spring unwinds. The part 4 is providedl with a lug 24, to limit themovement of the pawl 19,'as clearly shown. Thelever 21 is pushed in the direction of the arrow, when it. is desired to disengage its end from the said notch.

Modifications in detail may be resorted to Vwithout departing from the spirit of the invention or sacrificing any of its advanta es..

Havingthus described the-invention, w at is claimedas new and useful, by the protection of Letters Patent l. In a starting device for the crank shaft of an automobile, a casing formed in two part-s loosely mounted on the shaft, a ratchet and pulley keyed to the shaft, a lever, one of said parts having wornrteeth, while the other part has means to be cooperatedA with by said lever and provided with weighted means to cooperate with the ratchet, a stop` for said weighted means, and 'means for transmitting power from said pulley to the part having the worm teeth so to rewind the spring.

2. ln a starting device, a two part casing, a spring inclosed thereby and adapted to cooperate therewith, one of which parts performs' the function of a worm wheel, a shaft, said casing being loosely mounted upon said shaft, a ratchet and pulley keyed to the shaft, the other part of said casing having a notch andprovided with a weighted pawl to coperate with said ratchet, a lever to engage said notch, and means forftransinitting power from the. said shaft to the worm wheel when ,thevlever is disengaged from the notch so as to rewind the spring.

3. vIn a starting device, for the crank shaft of an automobile, a casing formed in two parts mounted loosely upon said crank shaft, a spring inclosed thereby and adapted to cooperate betweenthe two parts of the casing,

a ratchet and pulley keyed to said crank shaft, one of said parts of the casing having a notch and provided with a weighted means designed to be overbalanced at times so as to cause the said ratchet and pulley t0 move therewith, a'lever to engage said notch, and means for transmitting power from the said crank shaft to one of the. parts of the casing when the lever is disengaged from a spring inclolsed thereby and adapted. to co" operate between the two parts of the casing, a ratchet and pulley keyed to sald crank shaft, one of said parts of the casing having a notch and provided with a weighted pawl y designed to be overbalancedat times so as to 'cause said yratchet and pulley .to move with said part, a lever to en' ge said notch,

a shaft disposed at right an es to the crank.

shaft, a worm carried thereby, bne of said parts having worin teeth' to engage said worin, a bevel gear movable 'with the shaft of the worin, a secon'd pulley havi a'. bev-I eled pinion.' designed to engage 'sald bevelA gear, said pulleys vhaving belt connectionso as to cause the worm 'to rotate one of the parts of the casing so as to rewind the spring when the lever is disengaged from the notch. In testimony whereof I- have signed my naine to this specification in'the presence of two subscribing witnesses.

ARTHUR ELIAS NELSON. Witnesses:

PETER NELSON, ELMER S. NELSON. 

